Finding the Fourth Proportional to 874,378,787.08, 1,310,761,057.74 and 437,299,132.36
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Solution
The fourth proportional to 874,378,787.08, 1,310,761,057.74 and 437,299,132.36 is: 655,545,035.80
Step by Step Solution
- Step 1: Write the proportion equation
874,378,787.08 : 1,310,761,057.74 = 437,299,132.36 : x - Step 2: Convert to fraction form
874,378,787.08/1,310,761,057.74 = 437,299,132.36/x - Step 3: Cross multiply
874,378,787.08x = 1,310,761,057.74 × 437,299,132.36 - Step 4: Simplify right side
874,378,787.08x = 573,194,673,280,977,856 - Step 5: Solve for x
x = 573,194,673,280,977,856/874,378,787.08 - Step 6: Final answer
x = 655,545,035.80
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.